5.7.2 Carrier Waveform Shape
PSK carrier shape: Sine (default), Square, Ramp, Pulse, Arbitrary (except DC) or Harmonic
waveform
.
Press
[Wave]
button on the front panel to select the desired carrier waveform.
Noise and DC could not be used as carrier waveform.
5.7.3 Carrier Waveform Phase
Press
[Setting] >Phase
softkey on the front panel and use the numeric keypad or direction keys
and knob to input the desired phase.
The available phase ranges from 0º to 360º and the default value is 0º.
5.7.4 Modulation Source
Press
[Mod] > SignalSource
to select Internal or External modulation source.
Internal Source
When internal modulation source is selected, the modulating waveform is set as a Square with
50% duty cycle, and the rate at which the output phase "shifts" between "carrier phase" and
"modulation phase" is determined by "PSK Rate".
External source
When external modulation source is selected, the generator receives the external modulating
signal from the
[FSK/Trig/Sync/Extmod]
connector on the rear panel.
Note: The
[FSK/Trig/Sync/Extmod]
connector is different when controlling PSK and AM/FM/PM
modulations externally.
5.7.5 PSK Rate
When internal modulation source is selected, press
[Mod] > Rate
softkey to set the rate at which
the output phase shifts between "carrier phase" and "modulation phase".
Use the numeric keypad or direction keys and knob to input the desired rate value.
The rate range is from 2mHz to 1MHz and the default is 100Hz.
Note: This menu will be grayed out and disabled when the external modulation source is selected.
5.7.6 Modulation Phase
Press
[Mod]> phase
softkey to set the modulation phase.
Use the numeric keypad or direction keys and knob to input the desired phase value.
The phase range is from 0º to 360º and the default is 180º.
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